GPUBoss Review Our evaluation of 670 vs 645


Real world tests using the latest 3D games

crysis: warhead (2013), Crysis: Warhead (2012), Batman: Arkham City and 6 more


Synthetic tests to measure overall performance

PassMark, 3DMark 11 Graphics, 3DMark Vantage Graphics and 3DMark06

Compute Performance

General computing tests executed on the GPU

PassMark Direct Compute

Noise and Power

How loud and hot does the card run idle and under load


GPUBoss Score

Gaming, Benchmarks, Compute Performance and Noise and Power

Nvidia GeForce GTX 670 

GPUBoss recommends the Nvidia GeForce GTX 670  based on its benchmarks and compute performance.

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Differences What are the advantages of each

Front view of GeForce GTX 670

Reasons to consider the
Nvidia GeForce GTX 670

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Significantly better 3DMark vantage graphics score 31,610 vs 12,900 Around 2.5x better 3DMark vantage graphics score
Better PassMark score 5,382 vs 2,498 Around 2.2x better PassMark score
Higher clock speed 915 MHz vs 776 MHz Around 20% higher clock speed
Better 3DMark06 score 29,150 vs 20,370 Around 45% better 3DMark06 score
Significantly higher effective memory clock speed 6,008 MHz vs 3,828 MHz More than 55% higher effective memory clock speed
Better 3DMark 11 graphics score 9,600 vs 3,280 Around 3x better 3DMark 11 graphics score
Higher memory bandwidth 192.3 GB/s vs 91.9 GB/s More than 2x higher memory bandwidth
Higher texture rate 102.5 GTexel/s vs 37.2 GTexel/s More than 2.8x higher texture rate
Better floating-point performance 2,460 GFLOPS vs 894 GFLOPS More than 2.8x better floating-point performance
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher pixel rate 25.6 GPixel/s vs 9.31 GPixel/s Around 2.8x higher pixel rate
More shading units 1,344 vs 288 1056 more shading units
Significantly higher memory clock speed 1,502 MHz vs 957 MHz More than 55% higher memory clock speed
More texture mapping units 112 vs 48 64 more texture mapping units
Better PassMark direct compute score 2,542 vs 987 More than 2.5x better PassMark direct compute score
Slightly more render output processors 32 vs 24 8 more render output processors
Front view of GeForce GT 645

Reasons to consider the
Nvidia GeForce GT 645

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Lower TDP 102W vs 170W 40% lower TDP

Benchmarks Real world tests of GeForce GTX 670 vs GT 645

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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